podman-events: document verbose create events

issues.redhat.com/browse/RHELBU-1918 is mentioning the podman-events man
page which are lacking notes on the verbose create events added by
commit 71f92d2.

Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>

docs/source/markdown/podman-events.1.md

@@ -77,6 +77,9 @@ The *volume* type will report the following statuses:
  * prune
  * remove
 
+#### Verbose Create Events
+
+Setting `events_container_create_inspect_data=true` in containers.conf(5) instructs Podman to create more verbose container-create events which include a JSON payload with detailed information about the containers.  The JSON payload is identical to the one of podman-container-inspect(1).  The associated field in journald is named `PODMAN_CONTAINER_INSPECT_DATA`.
 
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